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Finding the Fourth Proportional to 6,421.15, 9,679.07 and 5,888.02

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Solution

The fourth proportional to 6,421.15, 9,679.07 and 5,888.02 is: 8,875.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,421.15 : 9,679.07 = 5,888.02 : x
  2. Step 2: Convert to fraction form
    6,421.15/9,679.07 = 5,888.02/x
  3. Step 3: Cross multiply
    6,421.15x = 9,679.07 × 5,888.02
  4. Step 4: Simplify right side
    6,421.15x = 56,990,557.74
  5. Step 5: Solve for x
    x = 56,990,557.74/6,421.15
  6. Step 6: Final answer
    x = 8,875.44

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.